Loudspeaker



FIG. 1 is a front perspective view of a loudspeaker showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left side elevational view thereof, the right side elevational view thereof being a mirror image of the left side view;

FIG. 4 is a rear view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken line showing in the drawings is for illustrative purpose only and forms no part of the claimed design. 

The ornamental design for a loudspeaker, as shown and described. 